Wierd error in Aesara

I took a toy code from Aesara official doc and it’s giving me a weird error. I didn’t get this error in another virtual environment so maybe there is some dependency on other packages? Here is the code

import aesara
import pymc
import aesara.tensor as at
a, b, c, d = at.scalars('abcd')
X = at.stacklists([[a, b], [c, d]])
f = aesara.function([a, b, c, d], X)
f(1, 2, 3, 4)

Here is the error message

Yes, this looks like an environment/dependency error. How did you install PyMC in this environment?

through anaconda. conda install -c conda-forge pymc=4.1.6